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asarkar

Member

Registered: 2010-06-16

Posts: 6

Intel wired ethernet (e1000e) power management problems

I have two issues and was wondering if anyone else is running into them or has dealt with them before:

1) If I boot/resume on battery power, I get the following error message:

[    6.463246] e1000e 0000:00:19.0: eth0: Unsupported Speed/Duplex configuration

The link operates at 10 Mb/s full duplex even though it can operate at 1000 Mb/s full duplex. It runs at the correct speed with the AC adapter, or if I manually set it with ethtool.

2) Whenever I connect/disconnect the AC adapter, the wired connection drops and I have to manually reconnect. The relevant dmesg output appears to be:

[38840.335537] e1000e 0000:00:19.0: PME# disabled
[38840.447088] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[38840.498415] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[38841.672218] e1000e 0000:00:19.0: PME# enabled
[38843.381142] e1000e 0000:00:19.0: BAR 0: set to [mem 0xf2600000-0xf261ffff] (PCI address [0xf2600000-0xf261ffff])
[38843.381148] e1000e 0000:00:19.0: BAR 1: set to [mem 0xf2625000-0xf2625fff] (PCI address [0xf2625000-0xf2625fff])
[38843.381153] e1000e 0000:00:19.0: BAR 2: set to [io  0x1820-0x183f] (PCI address [0x1820-0x183f])
[38843.381170] e1000e 0000:00:19.0: restoring config space at offset 0xf (was 0x100, writing 0x10b)
[38843.381191] e1000e 0000:00:19.0: restoring config space at offset 0x1 (was 0x100000, writing 0x100107)
[38843.381221] e1000e 0000:00:19.0: PME# disabled
[38843.381297] e1000e 0000:00:19.0: irq 42 for MSI/MSI-X
[38843.384732] e1000e 0000:00:19.0: eth0: PHY Wakeup cause - Link Status  Change

Hardware:
Thinkpad T410
Intel Corporation 82577LM Gigabit Network Connection (rev 06)

ehntoo

Member

Registered: 2010-01-20

Posts: 5

Re: Intel wired ethernet (e1000e) power management problems

Same issue here after upgrading my system today.  Worked flawlessly the last time I tried a wired connection, which would've been quite a while ago.
HP EliteBook 2530p
Intel Corporation 82567LM Gigabit Network Connection (rev 03)

I've poked around on the LKML and haven't turned anything up yet.  Will update if I find anything.

eisen

Member

Registered: 2012-03-14

Posts: 1

Re: Intel wired ethernet (e1000e) power management problems

I experienced issue #1 on my Thinkpad T420.  I fixed the issue by changing the following line in /etc/laptop-mode/conf.d/ethernet.conf from 0 to 1:

   DISABLE_ETHERNET_ON_BATTERY=1

Of course this will only work if you don't use ethernet while on battery power.

kazimir

Member

Registered: 2012-01-20

Posts: 79

Re: Intel wired ethernet (e1000e) power management problems

1. I have the same issue and I fix it manually with ethtool because I don't use a wired connection often. I just learned about another problem related to e1000e that prevented my thinkpad from properly shutting down. Have you tried setting power control to "on" if it's set to "auto" as mentioned in this bug report.

ehntoo

Member

Registered: 2010-01-20

Posts: 5

Re: Intel wired ethernet (e1000e) power management problems

1. I have the same issue and I fix it manually with ethtool because I don't use a wired connection often. I just learned about another problem related to e1000e that prevented my thinkpad from properly shutting down. Have you tried setting power control to "on" if it's set to "auto" as mentioned in this bug report.

Aha!  Works for me, thanks!